This computer radio frequency propagation program deals with radio waves and enables the RFMP system to visually see the terrain of a battlefield in three dimensions on a television-type screen.

The RFMP system also depends on a satellites to supplement the images of a battlefield picture obtained from the ground, thus producing the 3-dimensional images. In providing an interactive picture portraying in the radar screen, the RFMP system allows the computer operator to develop familiarity with the "environment" before a war mission occurs by playing a variety of "what if?" virtual warfare scenarios on his computer screen. Since all major modes of radio frequency propagation are modeled in his computer (the RFMP system), special, sometimes counter-intuitive, cases can be examined in detail and exploited during a battle. Initially, the VTRPE computer program only worked accurately over water and along coastal areas but not over land masses because the system's radar waves required an atmospheric condition known as "ducting," over land, to operate accurately.

This "ducting" problem was solved by releasing an aerosol, a mixture of barium salts into the atmosphere over the United States. Thus, they can make an atmospheric radio frequency "duct" with a base of barium aerosol released from aircraft.

One of the researchers, the physicist from Brookhaven, explained how the process works: The chemical and electrical characteristics of the mixture cause moisture to stay in the clouds. The aerosol sets up an electrical and chemical environmental that supports RF ducting for the RFMP/VTRPE warfare system."The mixture of barium salt from the aerosol when sprayed in a straight line will also provide a ducting path form point A to point B and will enable high frequency communications along that path, even over the curvature of the Earth, in both directions," he said. "Enemy high frequency communications can be monitored easier with the straight line A to B ducting medium."